﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Demos.DesignPatterns._11_外观模式
{
    public class SoundSystem
    {
        public void On() => Console.WriteLine("音响系统启动");
        public void SetVolume(int level) => Console.WriteLine($"音量设置为 {level}%");
        public void Off() => Console.WriteLine("音响系统关闭");
    }
}
